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Sentence spacing in digital media is the horizontal space between sentences in computer and web-based media. ''Digital media'' allow sentence spacing variations not possible with the typewriter. Most digital fonts permit the use of a variable space or a no-break space.〔Microsoft 2010.〕 Some modern font specifications, such as OpenType, have the ability to automatically add or reduce space after punctuation, and users may be able to choose sentence spacing variations. Modern fonts that allow spacing variations will allow the average user the ability to easily manipulate the following spaces: non-breaking short spaces (thin spaces), non-breaking normal spaces (thick spaces), breaking normal spaces (thick spaces), and breaking long spaces (em spaces). The use of shortcuts while using digital media, such as texting, has resulted in a change to sentence spacing techniques for some. According to Lynne Truss, "Young people ... are now accustomed to following a full stop with a lower-case letter and ''no space''." == Word processors and text input programs == The typesetting software TeX treats horizontal runs of whitespace as a single space, but uses a heuristic to recognize sentence endings—typesetting the spaces after them slightly wider than a normal space. This is the default for Tex, although the "\frenchspacing" TeX macro will disable this feature in favor of a word space between sentences.〔Eijkhout 2008. pp. 185–188. The default TeX spacing can be explicitly enabled with \nonfrenchspacing.〕 Computer word processors will allow the user to input as many spaces as desired. Although the default setting for many applications' grammar-checkers (e.g., Microsoft Word) is single sentence spacing, they can be adjusted to recognize double sentence spacing as correct also. A program called PerfectIt is an "MS Word add-in that helps professionals to proofread faster". The producer states that a feature was added to the most recent version of their program (as of August 2009), "to convert two spaces at the end of a sentence into one", but they have "never had any requests to convert one space into two".〔Lloyd and Hallahan 2009. See "iEditor" entry: 11 August 2009.〕 Some computer text editors, such as Emacs and vi, originally relied on double-spacing to recognize sentence boundaries. By default, Emacs will not break a line at a single space preceded by a period, but this behavior is configurable (with the option sentence-end-double-space). There are also functions to move the cursor forward or backward to the next double-space in the text. In Vim the joinspaces setting indicates whether extra spaces are inserted when joining lines together. The GNU Coding Standards recommend using two spaces when coding comments.〔Free Software Foundation 2010. Main work: (GNU Coding Standards )〕 The optional Emacs mode LaTeX provides a toggling option French-LaTeX-mode which, if set to French, creates single sentence spacing after terminal punctuation. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sentence spacing in digital media」の詳細全文を読む スポンサード リンク
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